W78LE365_07 Datasheet, PDF (25/42 Pages) Winbond – 8-BIT MICROCONTROLLER

W78LE365/W78L365A
6.3 Encryption
This bit is used to enable/disable the encryption logic for code protection. Once encryption feature is
enabled, the data presented on port 0 will be encoded via encryption logic. Only whole chip erase will
reset this bit.
6.4 Oscillator Control
W78L365A/E516 allow user to diminish the gain of on-chip oscillator amplifier by using programmer to
set the bit B7 of security register. Once B7 is set to 0, a half of gain will be decreased. Care must be
taken if user attempts to diminish the gain of oscillator amplifier, reducing a half of gain may
improperly affect the external crystal operation at high frequency above 20 MHz. The value of R and
C1, C2 may need some adjustment while running at lower gain.
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Publication Release Date: January 10, 2007
Revision A7